SingAstro

Hi Richard, The tail stub can be seen barely through the 4-inch refractor but is expected to brighten up as days goes by. Nevertheless, whatever the case, it is certainly a hot imaging item. The core is estimated to be non-stellar-like and diffuse, about 10 arc-minutes across, probably around the sa...

The cresent is due to the phases that Venus experiences as it traverses the orbit around the Sun resulting in the effect of different amounts of illuminance on the planet as seen from Earth. On the other hand, the transit of Venus occurs when the planet goes in front of the sun as seen from Earth. T...

Hi Arief,
Interesting pics you have there! It has certainly given us ideas in transporting our equipment easily and effectively! great!

Hi all, Here is another attempt at Comet Linear, this time round, a 3-piece mosaic was tried on the "dusty-snow-ball" Exposures had been increased to 180seconds since there was almost no presence of thin cloud cover towards the eastern horizon. Observation of the comet started at 5:26AM an...

Glad you are enjoying the XLs!

Hi SINGASTRO, Here is a picture of the morning comet taken today at 6:05AM using a 4-inch refractor (820mm f.l.) together with a CCD camera. Stacked image comprises of the following exposure: 1) 1X40 seconds 2) 1X70 seconds 3) 1X80 seconds 4) 1X90 seconds The comet is currently "below" 19 ...

Incidently there is an insightful article on the Transit of Venus in the May issue of Scientific American. Do check it out.

That's why I mentioned using software for reliance. But frankly, even with the change in RA&DEC for a given date, the change is small relative to the visibility of the comet (unless you are talking about seeing mag 10-12 or dimmer comets), and the given RA and DEC is enough to spot a mag 4 comet...

Hi acroamatic, The total lunar eclipse will occur after midnight on May 5th with the following Singapore local times: Penumbral Eclipse Begins: 1:50:53AM Partial Eclipse Begins: 2:48:20AM Total Eclipse Begins: 3:52:07AM Greatest Eclipse: 4:30:16AM Total Eclipse Ends: 5:08:27AM Partial Eclipse Ends: ...

Are you incidently referring to something like this: http://cfa-www.harvard.edu/iau/Ephemerides/Comets/2002T7.html which is the ephemeris for T7? It is pretty straight forward as you just need to refer to the date of observation, take note of the RA and DEC coordinates. Ignore the magnitude estimate...